As not-quite-orderlies who’re downright Disorderlies, rap-music favorites The Fat Boys rule. Playing the freewheeling caretakers of the frail Dennison (Hollywood legend Ralph Bellamy), they stir up a comedic culture clash…

Russell Walker is a young, successful manager of rap performers, handling acts for the Krush Groove label, including Run-DMC and The Fat Boys. When Run-D.M.C. has a hit record and…